摘要
简述了我国井下低压电网中性点接地方式的发展过程。从接地电流的危害程度 ,人身触电的安全性及中性点接地方式对选择性漏电保护动作的准确性和可靠性影响等方面 ,并借助于EMTP仿真程序提供的仿真数据分析比较论述了各种中性点接地方式的优劣 ,提出了不管从以上哪一角度看 ,中性点经高阻接地最适合于现在井下低压配电网。并提出了相应的中性点接地电阻值。
The paper introduced the development process of the neutral point grounding method for underground mine low voltage power distribution network in China. The paper provided that the neutral point via high resistance grounding is the most suitable to underground mine low voltage distribution network from the danger of grounding current, safety of human life. The paper also provided the electric resistance value of the related neutral point grounding.
出处
《煤炭科学技术》
CAS
北大核心
2002年第7期40-43,共4页
Coal Science and Technology
